Global Patent Index - EP 3540926 A1

EP 3540926 A1 20190918 - MULTIFUNCTION THREE QUARTER BRIDGE

Title (en)

MULTIFUNCTION THREE QUARTER BRIDGE

Title (de)

MULTIFUNKTIONALE DREIVIERTELBRÜCKE

Title (fr)

TROIS QUARTS DE PONT MULTIFONCTIONS

Publication

EP 3540926 A1 20190918 (EN)

Application

EP 19162239 A 20190312

Priority

  • US 201862642717 P 20180314
  • US 201816029407 A 20180706

Abstract (en)

Some apparatus and associated methods relate to a buck-derived switched mode power supply with three-quarter bridge (TQB) formed with a bypass switch in parallel with an inductor. In an illustrative example, the bypass switch may be configured to, in response to a decrease in average load demand, operate in a first mode to turn on the bypass switch to selectively circulate inductor current through the bypass switch while a high-side switch and a low-side switch are off. In a second mode, the bypass switch may be turned off to circulate the inductor current through, for example, an output capacitor and the low-side switch. In some implementations of the TQB, the bypass switch may be operated, for example, to selectively transfer a controlled amount of energy stored in the inductor to the output capacitor in response to a decrease in average load demand.

IPC 8 full level

H02M 3/158 (2006.01); H02M 1/15 (2006.01)

CPC (source: CN EP KR US)

G01R 19/16528 (2013.01 - US); G01R 19/16585 (2013.01 - US); H02M 1/00 (2013.01 - CN); H02M 1/08 (2013.01 - US); H02M 1/088 (2013.01 - US); H02M 1/14 (2013.01 - EP US); H02M 1/15 (2013.01 - EP); H02M 1/32 (2013.01 - EP US); H02M 1/34 (2013.01 - US); H02M 3/156 (2013.01 - KR US); H02M 3/158 (2013.01 - EP US); H02M 3/1582 (2013.01 - US); H02M 3/1584 (2013.01 - US); H02M 3/1588 (2013.01 - EP US); H02M 3/335 (2013.01 - US); H02M 3/33507 (2013.01 - US); H02M 1/0032 (2021.05 - EP); H02M 1/0045 (2021.05 - EP); H02M 1/0054 (2021.05 - US); H02M 1/0083 (2021.05 - CN); H02M 1/342 (2021.05 - US); H02M 3/1566 (2021.05 - EP); H02M 3/1586 (2021.05 - EP US); Y02B 70/10 (2013.01 - EP)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

US 10224805 B1 20190305; CN 110277913 A 20190924; CN 110690811 A 20200114; CN 110690811 B 20210730; CN 110729890 A 20200124; CN 110729890 B 20210205; CN 110752746 A 20200204; EP 3540926 A1 20190918; JP 2019162025 A 20190919; KR 20190108475 A 20190924; TW 201943196 A 20191101; TW 202007045 A 20200201; TW 202007060 A 20200201; TW 202008697 A 20200216; TW I676340 B 20191101; TW I711245 B 20201121; TW I713293 B 20201211; TW I732188 B 20210701; US 10243449 B1 20190326; US 10243465 B1 20190326; US 10574132 B2 20200225; US 2019288591 A1 20190919

DOCDB simple family (application)

US 201816042878 A 20180723; CN 201811353566 A 20181114; CN 201910181201 A 20190311; CN 201910210843 A 20190311; CN 201910210859 A 20190311; EP 19162239 A 20190312; JP 2019044550 A 20190312; KR 20180162934 A 20181217; TW 107140686 A 20181116; TW 108108072 A 20190311; TW 108108081 A 20190311; TW 108108082 A 20190311; US 201816029407 A 20180706; US 201816029421 A 20180706; US 201816038018 A 20180717